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Optimize UrlPathHelper configuration for Spring MVC

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Prior to this commit, Spring Boot would auto-configure Spring MVC and
would keep the default `UrlPathHelper` configuration.
Since Spring Boot is in charge of configuring the `DispatcherServlet`
and its mapping, it is in a position to optimally configure the
`UrlPathHelper` depending on the chosen mapping.

This commit sets the `alwaysUseFullPath` property of `UrlPathHelper` if
the Servlet mapping is `"/"`. This is more efficient since this
configuration requires less processing of the request path.

Closes gh-21499
This commit is contained in:
Brian Clozel
2020-05-22 18:35:08 +02:00
parent 525e03d3b5
commit a12a3054c9
2 changed files with 34 additions and 3 deletions
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15
spring-boot-project/spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/web/servlet/WebMvcAutoConfiguration.java
View File

@@ -119,6 +119,7 @@ import org.springframework.web.servlet.resource.VersionResourceResolver;
import org.springframework.web.servlet.view.BeanNameViewResolver;
import org.springframework.web.servlet.view.ContentNegotiatingViewResolver;
import org.springframework.web.servlet.view.InternalResourceViewResolver;
import org.springframework.web.util.UrlPathHelper;
/**
* {@link EnableAutoConfiguration Auto-configuration} for {@link EnableWebMvc Web MVC}.
@@ -188,16 +189,20 @@ public class WebMvcAutoConfiguration {
private final ObjectProvider<HttpMessageConverters> messageConvertersProvider;
private final ObjectProvider<DispatcherServletPath> dispatcherServletPath;
final ResourceHandlerRegistrationCustomizer resourceHandlerRegistrationCustomizer;
public WebMvcAutoConfigurationAdapter(ResourceProperties resourceProperties, WebMvcProperties mvcProperties,
ListableBeanFactory beanFactory, ObjectProvider<HttpMessageConverters> messageConvertersProvider,
ObjectProvider<ResourceHandlerRegistrationCustomizer> resourceHandlerRegistrationCustomizerProvider) {
ObjectProvider<ResourceHandlerRegistrationCustomizer> resourceHandlerRegistrationCustomizerProvider,
ObjectProvider<DispatcherServletPath> dispatcherServletPath) {
this.resourceProperties = resourceProperties;
this.mvcProperties = mvcProperties;
this.beanFactory = beanFactory;
this.messageConvertersProvider = messageConvertersProvider;
this.resourceHandlerRegistrationCustomizer = resourceHandlerRegistrationCustomizerProvider.getIfAvailable();
this.dispatcherServletPath = dispatcherServletPath;
}
@Override
@@ -227,6 +232,14 @@ public class WebMvcAutoConfiguration {
configurer.setUseSuffixPatternMatch(this.mvcProperties.getPathmatch().isUseSuffixPattern());
configurer.setUseRegisteredSuffixPatternMatch(
this.mvcProperties.getPathmatch().isUseRegisteredSuffixPattern());
this.dispatcherServletPath.ifAvailable((dispatcherPath) -> {
String servletUrlMapping = dispatcherPath.getServletUrlMapping();
if (servletUrlMapping.equals("/")) {
UrlPathHelper urlPathHelper = new UrlPathHelper();
urlPathHelper.setAlwaysUseFullPath(true);
configurer.setUrlPathHelper(urlPathHelper);
}
});
}
@Override